{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{4}{cccc}}
\hline\hline
                    &\multicolumn{2}{c}{(1)}  &\multicolumn{2}{c}{(2)}  &\multicolumn{2}{c}{(3)}  &\multicolumn{2}{c}{(4)}           \\
                    &\multicolumn{2}{c}{Full Sample}&\multicolumn{2}{c}{Below Mean Distance}&\multicolumn{2}{c}{Above Mean Distance}&\multicolumn{2}{c}{Diff}          \\
                    &        mean&          sd&        mean&          sd&        mean&          sd&           b         &           t\\
\hline
Total Visits        &      81.790&      60.241&      92.161&      64.343&      69.475&      52.426&      22.686\sym{***}&     (6.682)\\
Normalized Visits   &      27.185&      24.053&      30.567&      26.429&      23.169&      20.182&       7.398\sym{***}&     (5.425)\\
Weighted Distance to Prisoner Zip Codes&     321.841&     106.134&     264.297&      37.747&     405.943&     117.223&    -141.646\sym{***}&   (-29.042)\\
Incident per 100    &       1.366&       1.088&       1.361&       0.902&       1.372&       1.274&      -0.010         &    (-0.168)\\
Use of Force per 100&       0.580&       0.530&       0.637&       0.499&       0.512&       0.558&       0.125\sym{***}&     (4.136)\\
Battery             &      12.300&       9.963&      13.371&       8.868&      11.027&      10.998&       2.345\sym{***}&     (4.130)\\
Assault             &       1.475&       1.793&       1.722&       1.834&       1.182&       1.700&       0.540\sym{***}&     (5.079)\\
Drug possession     &      18.032&      15.195&      17.699&      15.255&      18.428&      15.128&      -0.729         &    (-0.799)\\
Appeals per 100     &      13.416&       7.572&      14.086&       7.335&      12.621&       7.776&       1.465\sym{**} &     (3.238)\\
Disciplinaries per 100&       9.163&       4.994&       9.669&       4.836&       8.562&       5.116&       1.107\sym{***}&     (3.717)\\
Placement of Contraband/CSW&       0.534&       0.995&       0.497&       1.002&       0.578&       0.986&      -0.081         &    (-1.364)\\
\hline
Observations        &        1225&            &         665&            &         560&            &        1225         &            \\
\hline\hline
\end{tabular}
}
